Self-acting mule and twiner.



No. 754,973. ,PATENTB'D MAR. 22, 1904 J. T. GONNBLLY.

SBLT ACTING MULE AND TWINER. APPLICATION FILED EAR. s. 1903.

N0 MODEL.

UNITED STATES Iatented March 22, 1904.

PATENT OFFICE.

JOHN THOMASCONNELLY, OF MANCHESTER, ENGLAND.

SELF-ACTING MULE AND TWINER.

SPECIFICATION forming part of Letters Patent No. 754,973, dated March 22, 1904.

Application filed March 6, 1903. Serial No. 146,597. (No modelJi To all whom, it 11mg concern.-

Be it known that I, JOHN THOMAS (JoNNELLY, a subject of the King of Great Britain and Ire: land, residing at Manchester, England, have invented certain new and useful Improvements in Self-Acting Mules and Twiners, of which the following is a description.

less and the mule stopped until the band has been repaired or replaced by a new one. The connection of the band ends to the scrolls has also been faulty, the band being simply passed through a hole or eye in the scroll and then knotted to give the desired connection. According to this invention the said pulley is dispensed with and a T-shaped swivel-piece is employed, also two drawing-up bands, or a drawing-up band in, by preference, two parts, and the connections thereof with the scrolls and the said swivel-piece are by means of split (or divided) cones, the inner faces of which are shaped to follow thecontour of the hand.

To permit of the invention being clearly understood, I have hereto appended a sheet of drawings, in which Figure 1 illustrates a plan of the improved arrangement of scroll-band and scrolls, also the said swivel-piece and cone-connecting devices. Fig. 2 illustrates a front elevation. Fig. 3 illustrates an end view of one of the split (or divided) cones, and Fig. 4 a face view of one of the half parts of the said cones. Fig. 5 illustrates the manner of connecting the end of each band to its scroll, and Figs. 6 and 7 illustrate like views to Figs. 3 and L of one of the cones used for the scroll end of the band. Fig. 8 illustrates a plan of the part by which the said cones are held to the scroll. Fig. 9 illustrates a modification.

Referring .to Figs. 1 to 4, a (0* are the two drawing-up bands or the old form of band in two parts. 6 is the swivel-piece, which is mounted loosely upon a vertical stud 0, carried by a slide (Z on the carriage-square. The stud and slide are substantially the same stud and slide heretofore used for carrying the pulleyaforesaid, and they are adjusted by a screw c and hand-lever f, retained by ratchet-wheel and pawl g in the usual manner. In each arm of the swivel-piece is a tapered eye or opening, and in each of such openings is a split or divided cone-bush h. (See Fig. 3.) Upon each scroll'd is a bracket or fitment 7', one part of which is screwed to the scroll and the other part of which is formed with a tapered opening is to receive, as shown in Fig. 5, one of the divided cones Z. (Shown in Figs. 6 and 7.) Prior to the cones being placed in the said openings the ends of the bands are threaded through such openings, and the half parts of the cones are placed around the bands, after which the cones of the scroll ends are placed in the opening of the brackets j and drawn or forced therein'until a tight fit. The cones of the carriage-square ends of the bands are then inserted and forced into the openings of the swivel-piece until they also are a tight fit, after which, if necessary, the screw 0 is rotated and the swivel-piece adjusted until the bands are in tension, the placing of the cones It on the bands being as even as possible to insure the two bands being of even length.

As shown in Figs. 4 and 7 the interior of each divided cone is of rope-pattern. Hence each cone is a close fit upon its hand, and meshing with the convolutions of the strands a most secure hold is obtained on the band, the possibilities of slip being m'Z. Cones with a smooth interior or merely roughened to an irregular outline have been tried,'but are not effective. To prevent the half-cones getting separated,they may be connected to each other by small lugs and a ring, as shown by dotted lines in Figs. 3 and '4. In the case of the arrangement shown in Figs. 5, 6, 7, and 8 the oval formation of the cone prevents the cone rotating in the bracket, and thus prevents the untwisting of the band,which might otherwise occur. The said swivel-piece b is formed with downwardly-projecting parts 6*, and the slide d is provided with two upwardly-pro ecting I0 parts cl", and the position of these last-named parts relatively to the swivel-piece is such that they allow of a slight rotation of the swivel-piece, (sufficient, say, to compensate for any unevenness in the lengths of the ropes or the formations of the scrolls;) but upon either of the bands breaking such parts act as stops or abutments for the swivel-piece and allow the mule to continue working with one band. As shown by dotted lines, the band may be in piece; but I prefer it to be in two pieces, so that a spare length may be left at one end and be coiled up in the carriage ready for emergencies, as also shown by dotted lines.

As a modification I may fit the cones and band ends into collars m and cause the bands to pass through the openings in the swivelpiece I; and the collars to bear against the side of the swivel-piece. (See Fig. 9.) Such arrangement may be also used at the scroll end of each band. It may also be applied for connecting the ends of the checking and like bands of mules to the carriage-square.

What I claim is 1. In self-acting mules and twiners, a carriage-square, a two-armed swivel-piece with an opening in each arm; means for pivotally supporting such swivel-piece upon the carriage-square; means for adjusting it to and fro; and means for limiting its swivel movements; in combination with a drawing-up band passing through each of the said openings in the arms of the swivel-piece; a tube of conical formation and in two parts fitting around the said band and within each of the said openings; a pair of drawing-up scrolls, a bracket, with opening, upon each drawing-up scroll; and further tubes of conical formation and in two parts fitting around the scroll ends of the band, and within the openings in the brackets, as set forth.

2. In self-acting mules and twiners, a carriage-square, a two-armed swivel-piece with an opening in each arm and two depending parts; means for pivotally mounting the said swivel-piece upon the carriage-square; means for arresting the rotary movements of the swivelpiece; and means for adjusting it to and fro, as and for the purposes set forth.

In witness whereof I have hereunto set my hand in presence of two witnesses.

JOHN THOMAS CON N ELLY. 

